| 1. | Hexagonal trapezohedral tetartohedral trigonal trapezohedral class 六方偏方四分面体类 |
| 2. | Hexagonal rhobohedral tetartohedral class 六方菱形四分面体类 |
| 3. | Rhombohedral tetartohedral class 菱形四分面像类 |
| 4. | The method of surfacing welding sealing strip was adopted to repair the deformation of the flange joint surface of the high and intermediate pressure outer casing 摘要湛江发电厂在1999年1 (上标# )机组大修中采用堆焊密封带方法修理了汽轮机高中压外缸中分面的变形缺陷。 |
| 5. | 8 guo b . quadric and cubic bitetrahedral patches . the visual computer , 1995 , 11 : 253 - 262 . 9 wang w , qin k . on the existence and computation of rational quartic spherical curves for hermite interpolation 关于参数插值曲面构造的研究综述一般是先在每三角剖分面上构造边界曲线,而后再用一片或多片插值曲面去填充这些曲线网格。 |
| 6. | The model of the problem is composed of two half spaces with half circular lining inclusion . horizontal surfaces of the half spaces are loaded with undetermined anti - plane force in order to satisfy continuity conditions at linking section , or with some certain forces to appear cracks . a series of fredholm integral equations of the first kind for determining the unknown forces can be set up through continuity conditions that expressed by using of the green " function 然后将问题的模型视为“契合”问题,即将其剖分为两个含半圆环形衬砌的弹性半空间,分别在其剖分面上加置未知的出平面荷载,并在欲出现裂纹位置加置出平面反力使之产生裂纹,接下去利用green函数表示出界面连续条件,建立决定待解外力系的第一类fredholm积分方程组。 |
| 7. | The numerical calculating based on reynolds equation are carried out with the help of computer program built by bearing research institute of xi ' an jiaotong university . the calculating results indicated that three lubricating oil wedge bearing with an end - to - end through gap between the horizontal combine surfaces will not be unsteady factor when the bearing load no change . but the horizontal oil film rigidity will reduce and the working position of axle journal in the bearing will change 论文利用雷诺方程对# 5轴承的三油楔水平中分轴承进行了数值计算,计算结果表明,当三油楔轴承水平中分面有贯通的缝隙而轴承的载荷不变时,三油楔轴承不会失稳,但会减小水平方向的油膜刚度,改变轴颈在轴瓦中的工作位置。 |